Um... WTF?!?

Cow fart cans offer 'authentic smell of countryside'Metro.com.uk - Tins filled with the air sucked out of an aging wooden stable, straw lined and filled with gas-producing cattle has become an instant hit after it went on sale in Germany.

Managers of the 'Countryside Air to Go' project say their clients are mainly country people who have moved to the city and want to be reminded of home.

The cans cost £5 a pop and can be ordered from the web site www.stallduft.de

One advert boasts: 'Simply put your nose to the tin and peel back the lid for the authentic smell of the country'.

Designer Daniela Dorrer from the village of Adlkofen in Bavaria in Germany said: 'We hope to make people who miss the countryside happy and remind them of home.

'We are planning other smells such as horse, straw, pigs and manure. But most people miss the smell of the cows in the country, not really surprising as much of the smell is from cows.'

Cows' farting and burping have even been accused of causing global warming problems.

Just one cow gives off enough harmful methane gas in a single day to fill around 400 litre bottles, which is really bad for the environment, say experts.